# Migration to rest client ,NoSuchFieldError: Lucene\_5\_5\_4 error

**URL:** <https://discuss.elastic.co/t/migration-to-rest-client-nosuchfielderror-lucene-5-5-4-error/134217>\
**Category:** Elasticsearch\
**Created:** [June 1, 2018, 12:07pm UTC](https://discuss.elastic.co/t/migration-to-rest-client-nosuchfielderror-lucene-5-5-4-error/134217 "2018-06-01T12:07:55Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [June 1, 2018, 5:25pm UTC](https://discuss.elastic.co/t/migration-to-rest-client-nosuchfielderror-lucene-5-5-4-error/134217/5 "2018-06-01T17:25:28Z")

</div>

Please format your code, logs or configuration files using `</>` icon as explained in [this guide](https://discuss.elastic.co/t/about-the-elasticsearch-category/21) and not the citation button. It will make your post more readable.

Or use markdown style like:

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This is the icon to use if you are not using markdown format:

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There's a live preview panel for exactly this reasons.

Lots of people read these forums, and many of them will simply skip over a post that is difficult to read, because it's just too large an investment of their time to try and follow a wall of badly formatted text.

You probably have somewhere in your classpath an old version of Lucene. Or when you launch your main class, it is missing the dependencies?

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_[View the full topic](https://discuss.elastic.co/t/migration-to-rest-client-nosuchfielderror-lucene-5-5-4-error/134217)._